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I am trying to intercept the WM_NCPAINT message by first calling ::DefWindowProc, then paint over it. However, when I paint the window controls of the title bar or non-client area, I need to have its RECT structure. Therefore, how do I access the REcT structure?
The update region is passed in message’s
wParam. The non client area of the window isn’t rectangular so you don’t get a singleRECT.I presume you are aware that
WM_is not compatible with Vista DWM glass.NCPAINT